Previously on Penguin vs. Amazon, Amazon cut prices for Penguin’s new releases of ebooks down to a discount price of $9.99. Penguin retaliated on April 1st by refusing to let Amazon carry any of its new ebook releases anymore. Amazon counterattacked by making those same books, in hardback form, that $9.99 price. Other companies had long since come to agreements with Amazon on pricing deals, but Penguin was stubborn. Eventually, Penguin too came to an agreement, and all seemed finally at peace. The peace was tenuous, however, and all knew that it would only be a matter of time.